Oil burner



Apr. 24, 1923. 1,452,563

W. K. LEWIS OIL BURNER Filed Feb. l5, 1922' nom/E rs Patented Apr. 24l/923.

W ILLIAM KARL LEWIS, 0F OMAHA, NEBRASKA.

on. BUmgmt.

Application led February 13, 1922. Serial No. 536,127.

To' all whom z't may concern.'

Be it known that I, WILLIAM K. LEWIS, a

citizen of the United States, andresident of with an upstanding continuous flange or side portlon whlch 1s preferably formed integrally w1th the bottom 1. A hollow burner Omaha, in the county of Douglas and State \b\ody 4 is upstanding from the central open- `of Nebraska, have invented certain new and useful Improvements in Oil Burners, of which the following is a specification.

This invention relates to oil burners and it consists in the combinations, constructions and arrangements herein described and claimed.y

An object of my invention is to provide a burner of simplified construction which is adapted to be arranged within furnaces and heating plants originally constructed for the use of coal or the like as a fuel therefor, whereby hydrocarbon fuel, such as various grades of oils, may be used as fuel for such furnaces and heating plants without any extensive changes, if any, in the ordinary construction of the latter beingrequired.

A further object of my invention is to provide a furnace which is constructed in such manner as to direct the flame occasioned by the combustion of a fuel therein radially of the burner, thereby insuring the diffusion of the heat generated over` a maximum area and thus effecting an economy in the use of fuel.

A further object of my invention is to provide facilities for supplying steam or intermingled steam and Water vapors .to a burning hydrocarbon fuel, thereby aiding in the accomplishment of practically complete consumption of the fuel and preventino` the accumulatiton of carbon deposits.

ther objects and advantages will be apparent from the following description and the vnovel features of the invention will be particularly outlined in the appended claims.

My invention is illustrated in the accompanying drawing forming a part of this application in which Figure 1 is a vertical sectionI through a portion of a furnace and through an embodiment of the invention applied thereto, and

' Figure 2 is a perspective view of the embodiment'of the invention detached from the furnace.

In carryin'fr out my invention, I provide a lsubstantially pan-shaped base which comprises a flat bottom portion 1 having a relatively large central opening 2 formed therethrough and being provided at its outer edge ing through the bottom 1 and is'joined at its lower end to the inner wall of the latter.

The burner body 4 has side walls which flare outwardly in a uniform manner from the. lower end to the upper end thereof and wh1ch are joined to at their upper ends or formed integrally with an inwardly and upwardly inclined flange or rib portion 5 which supports a top or closure 6. The top or cover or closure 6 may be formed integrally with the flange. 5 or separately and secured upon the latter, as may be desired.

The burner-body 4 has a plurality of peripheral series of openings formed to extend radially through its walls in different horizontal planes. .The series of openings are respectively indicated at 7 to 13 inclusive. The openings of the respective series vary in size from the lowermost series 7 which is located in a plane above that of the bottom 1 and below that of the upper edge of the marginal flange 3, to the uppermost series 13 which lies in a plane adjacent to that of the lower end of the inclined `flange 5 and which comprises openings of the largest size.

Openings 14 are formed through the bottom l at diametrically opposite points and intermediately of the innerand outer edges thereof. In practice, the base 1 is superimposed upon grate bars 15 which are arranged within a furnace or heater between the fire pot and ash pit portions 16 and 17 of the furnace or heater, whereby the marginal flange 3 is spaced from the inner wall of the fire pot portion of the heater. An asbestos composition or other suitable refractory material is arranged between the base 1 and the inner wall of the fire pot so that ascending currents of air within the ash pit are deected into the open lower end of the body 4. Branch fuel supply conduits 19 have their discharge ends projected through the Openings 14 to a plane slightly above the'plane of the bottom 1 and in such manner as to have a fluid tight fit with the opening. The branch conduits 19-19 are controlled by valves 20 connected therewith and are joined by a suitable ipe fitting, such as the T 21 w1th a main uel supply conduit 22 leading to a source of fuel supply, not shown. The source of fuel supply is preferabl located above the level of` the bottom 1 a though fuel may be forced therethrough bypressure means such as are well known in the art. A conduit 23 which is adapted for vconnection with a source of water supply not shown, has'the discharge end thereof extending through the top 6 to depend within the body 4. The conduit 23 has a suitable arrangement 24 which may be of any known type of construction for controlling the flow of water therefrom and for causing the same to be dj'harged at a desired rate, in the form of a'spray', which will be converted into steam immediately upon striking the heated wall of the burner.

From the foregoing description of .the various parts of the device, the operation thereof may be readily understood. It will be understood that the burner is made of any suitable material, such-as cast iron. A suitable hydrocarbon fuel, such as kerosene is supplied-by the conduit 19 to the base and will accumulate upon the latter between the liange 3 and the lower end portion of the body 4. rl`he hydrocarbon fuel delivered to the basev will be ignited when a desired uantity has been discharged from the conuit 19 and is confined between the flange 3 and the portion of the body 4 below the level of the lowermost series of openings 7. The currents of air passin into the body 4 from the ire pit will be de ected radially through the several series of openings and will not only romote combustion within the base but will force the frame radially or laterally of the body 4 to impinge agalnst the wall of the lire pot, thereby insuring the radiation from the furnace or heater equipped with my invention of practically all the heat developed by the combustion of a given uantity of fuel. The steam from the conuit 23 is entrained with the air currents and delected'upon the surface of the burning oil, thereby aiding in breaking up masses of oil and in occasioning the pract1- cally complete consumption of the oil delivered to the burner. An important feature of the invention is the provision of spaced series of openings of different sizes, the openings of the uppermost series being the largest, whereby the volume of the air currents passing through the openings of the u pe'rmost series is greater than that of the air currents passing through the openings of a lower series. Consequently, the llame will be deflected outwardly until the same has attained a height considerably greater than that of the burner body 4 and thus practically all the heat developed will be utilized in heating the'walls of the fur.- nace and will not be wasted, as by being drawn directly through a flue of the furnace. The flaring form of the burner body 4 roduces an advantage in that the currents ofp air passing through the openings of the incassa respective series are deflected downwardly embodiment in forms other than that illus,

trated in the accompanying drawing and Iy therefore consider as my own Aall modications and adaptations of the form of the device disclosed herein which do not depart from the spirit and scope of the invention as outlined in the appended claims.

l. In a burner, a base consisting of a bottom having a central opening formed therethrough and an upstanding iiange at its outer edge, and a hollow body upstanding from the central opening through said bottom and being provided with a plurality of openings through its side walls, said hollow body being formed to flare outwardly toward its upper end, the side walls of the body being concavely curved from their lower to their upper ends.

2. In aburner, a base consisting of a bottom having a central opening formed therethrough and an upstanding flange at 4its outer edge, and a hollow body upstanding from the central opening through said bottom and being provided with a plurality of openings through its side walls, said hollow body being formed to flare outwardly toward its upper end, the side walls of the body being concavely curved from their lower to their upper endsand being closed at its upper end.

3. In a burner, a base com rising a flat bottom having a relatively arge central opening formed therethrough and having an upstanding marginal flange at its outer edge,

and a hollow body upstanding from thel central opening through the bottom of the base and being formed to flare outwardly -toward its upper end, said hollow body being closed at its upper end and having a plurality of spaced peripheral series of openin s formed through itswalls, the openings o certain of said series being larger ythan the openings of other series and being directed downwardly and outwardly toward their outer ends.

4. In a burner, a base com rising a flat bottom having a relatively opening formed therethrough and having an upstanding marginal flange at its outer edge,

and a hollow body upstanding from the arge central.

comprising openings of the smallest size, said openings being directed downwardly and outwardly toward their outer ends. y

5. A burner comprising a base consisting of a flat bottom having a relativelylarge central opening, formed throughvits walls.

and an upstanding marginal Harige at its outer edge, said bottom being provided with an inlet opening, a hollow body upstanding from the central opening and being provided with openings through its side walls, said openings being directed downwardly and outwardly toward their outer ends and means communicating with said inlet for discharging a hydro-carbon fuel upon said bottom within the space between said marginal flange and said body.

6. Aburner comprising a base consisting of a flat bottom having a relatively large central opening, formed through its walls and an upstanding marginal flange at its outer edge, said bottom having inlet openings formed therethrough at diametrically opposite points, a hollow body upstanding from saidcentral opening and having its side walls concavely curved in longitudinal sectional contour and openings formed through the side walls, said openings being directed downwardly and outwardly toward their outer ends, and means connecting with said inlet openings for discharging ahydrocarbon fuel upon said bottom.

7. A burner comprising a base consisting of a flat bottom having a relatively large central opening, formed through its walls and an upstanding marginal flange at its outer edge, said bottom having inlet' openings formed therethrough at diametrically opposite points, a hollow body upstanding from said central opening and having openings formed through the side walls thereof, means connecting-with said inlet openings for discharging a hydrocarbon fuel upon said bottom, and a conduit having a dis charge end pendant within the holldw body 5- and being adapted to discharge a iuid against the inner walls of the latter.

WLAii/i KARL LEWlSi 

